Why Compost? Composting Stats Types of Composting Compost Tips
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Why Compost? Composting Stats Types of Composting Compost Tips
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Just the Facts
Composting
Why Compost? Reduce Greenhouse Gases
Save Water
Soil Loss
67% of all the methane generated The Earth annually loses 75in Metro Vancouver comes from 100 GigaTonnes of arable landfills. topsoil.
Diverting organics from the landfill reduces methane emissions.
Composting returns nutrients back into soils.
Organic matter retains 18-20 times its weight in water.
1% organic matter in the top 6" of soil can hold 27,000 gallons of water per acre.
Sources
Questions and Answers for Residents. Metro Vancouver http://www.metrovancouver.org/services/solid-waste/food-scrapsrecycling/residents/questions-answers/Pages/default.aspx Human Health, the Nutritional Quality of Harvested Food and Sustainable Food Systems. Nutrition Security Institute http://www.nutritionsecurity.org/PDF/NSI_White%20Paper_Web.pdf Soil Health Key Points. United States of Agriculture. http://www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb1082147.pdf
Composting Stats Households that practice composting across Canada:
There are over 162 composting facilities in Canada as of 2014.
Compostable organics made up 36.2% of municipal solid waste by weight in Metro Vancouver in 2013.
Sources
Composting by households in Canada. Statistics Canada http://www.statcan.gc.ca/pub/16-002-x/2013001/article/11848-eng.pdf 2013 Solid Waste Composition Monitoring Program. Metro Vancouver http://www.metrovancouver.org/services/solidwaste/SolidWastePublications/2013_Waste_Composition_Report.pdf Clean Energy Fund: Urban Renewal Bioenergy Production. Harvest Power http://www.harvestpower.com/wpcontent/uploads/2014/10/Harvest-Fraser-Richmond-Organics-CEF-Outreach-Report-EN.pdf
Types of Composting BACKYARD
BOKASHI 2 WEEKS: Time it takes for this anaerobic process to produce a fermented product.
1 MONTH: How long it takes to make immature compost in a backyard composter.
1m3
HOT COMPOSTING
It takes six months to one year for it to fully cure.
55°C
You can plant in it directly 2-4 weeks after it has been dug into the soil.
The critical VOLUME and TEMPERATURE for a hot compost pile.
VERMICOMPOSTING
IN-VESSEL
Red wrigglers are the composting worm of choice as they prefer living in crowded conditions.
24 HOURS: How long it takes for some invessel systems to produce unfinished compost.
Vancouver residents can register to receive a worm kit and workshop from the Compost Demonstration Garden.
The curing process takes around 3-4 weeks. Sources
Factsheet Series - Hot Composting. Compost Education Centre. http://compost.bc.ca/wp-content/uploads/2015/03/4-HotComposting.pdf 25 Questions and Answers about Composting. Compost Council of Canada. http://www.compost.org/English/qna.html#section10 Worm Composting. City Farmer http://www.cityfarmer.info/wormcomposting/ On-site Composting Technology Review. Metro Vancouver http://www.metrovancouver.org/services/solidwaste/SolidWastePublications/MV-ON-SITECOMPOSTINGTECHNOLOGYREVIEWOct2012.pdf Try Bokashi Composting. The Compost Gardener. http://www.the-compost-gardener.com/bokashi-composting.html
Compost Tips Build Diversity
Ways to Use Compost
Remember the Ratios!
One spoon of healthy garden soil has
Soil amendment (Turned into the soil)
* BILLIONS of bacteria * Several yards of fungal filaments * THOUSANDS of protozoa * Lots of nematodes.
Finished Compost has a Carbon to Nitrogen ratios 12:1-20:1.
Top dressing or mulch (On top to be absorbed over time)
Feed the soil and the plants will grow.
One inch (or 2 cm) of finished compost can kickstart a garden.
The right mix of browns (carbon) and greens (nitrogen) will ensure a smooth composting process.
Sources
The secret life of soil. Oregon State University. http://extension.oregonstate.edu/gardening/secret-life-soil-0 Compost - What Is It? California's Department of Resources Recycling and Recovery http://www.calrecycle.ca.gov/Organics/CompostMulch/CompostIs.htm The Secret to Successful Living. Compost Council of Canada http://www.compost.org/English/healthysoilPR.html
Looking for more tips or facts for composting? Visit www.rcbc.ca or call the RCBC Hotline (604)732-9253 or toll-free 1(800)667-4321
